A deeply psychological thriller filled with suspense from Greer Hendricks and Sarah Pekkanen, the bestselling authors of The Wife Between Us and An Anonymous Girl. A young woman stands on the platform of a station in the New York subway system. Across the track she sees a girl who looks just like her, same clothes, probably doing the same job - then that girl steps off the platform and into the path of an oncoming train. Our protagonist is traumatized but is told of a group for women that help other women through trauma. She agrees to go, their motto is 'You are not along' . . . On the second night at the centre, she opens her closet to find a note pinned to her jacket. It reads, 'this place is not what you think it is'. What will it cost to receive the help of these people, and what do they really want in return . . . YOU ARE NOT ALONE . . . YOU'LL WISH YOU WERE . . .